Peters



mme A.WINWARD I vSteam Chest for lH01', Air Drying. No.`239o1o. Patented March 15,1881.'

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l N-PErERS. PHOTO-UTMDGRAPHER, WASHINGTON, v c.

UNITED STATES PATENT OEEICE.

ALEXANDER WINWARD, OF ACCRINGTON, COUNTY OF LANCASTER, ENGLAND.

STEAM-CHEST FOR HOT-AIR DRYING.

SPECIFICATION forming part of Letters Patent No. 239,010, dated March 15, 1881. Application tiled September 17, 1880. (No model.) Patented in England February 2B, 1880.

To all whom it may concern Be it known that I, ALEXANDER WINWAED, of Accrington, in the county ot' Lancaster, in England, engineer, have invented new and useful Improvements in Steam Chests for Hot- Air Drying, (for which I have obtained a patent in Great Britain, No. 88S, bearing date February 28, 1880,) of which the following is a specification.

The invention con sists in a sheet of tubes provided with cross-pipes as well as inlet and outlet pipes, as hereinafter described. These tubes may be separate for the greater portion of their length and connected to each other at either end, the tubes opening at each end into a cross-pipe or steamway in such a` manner that the steam may pass through them all; or the ,4 outsides of the tubes may be joined to each other by a central web extending the whole of their length. I place the inlet and outlet pipes for steam at the diagonally-opposite corners of the chest.

In order that my invention may be fully understood and readily carried into effect, I will describe the accompanying sheet of drawings, reference being had to the figures and letters marked thereon.

Figure l is a cross section, Fig. 2 is a side elevation, and Fig. 3 is an end view, of asteamchest made according to my invention.

a a are the tubes, cast in one' piece with the cross-pipes or steamways b b, and c c are the inlet and outlet pipes for steam.

d d are the boltholes through which bolts are passed to iix the steam-chests to the framing. Any number of steam -chests may be bolted together at the flanges of the inlet and outlet pipes.

e c are the holes through which the core is extracted, and which are afterward plugged.

By the use of my improvements high-pressure steam may be used up to one Vhundred pounds to the square inch, and with the increased pressure a much higher temperature is obtained, the danger ot' explosion common to the old system of dat steam-chests is avoided, and a much greater heating-surface is obtained in a given space.

I am aware that it is not new to make a steam-radiator pipe with a central and a surrounding channel, between which the air is allowed to circulate, the central one being placed directly opposite to the steam-inlet and coming short at each end of the pipe; also, that it is not new to form a gang or cluster of hotwater pipes united ateach end'toahollowtrunlt, the inlet and outlet pipes being arranged diagon allyopposite; but my chest of pipes is for the special purpose of drying cloth so rapidly that the colors will not mark when the cloth is folded. Hence it becomes necessary that a very high temperature shall be imparted to the air that comes in contact with the cloth, and for this purpose the chest-pipes must be able toL bear a very great pressure of steam. Heretofore, the pipes being separate and jointed together in sets placed side by side, it was impossible to attain the degree of heat required. l have found by experiment that where the pipes are all cast together in a single chest I can secure any desired temperature without difficulty or danger.

What I claim as new and of my invention The tubes a of a steam radiating chest for drying colors in the process of printing cloths, cast in one piece with the cross-pipes b and inlet and outlet pipes c c, as and for the purpose specified.

Manchester, August 31, 1880.

' ALEXANDER WINWARD.

Witnesses:

MILES DAY, CHARLES ALFRED BAELOW. 

